Wagner-Meerwein Rearrangement

👉👉Reaction mechanism 👉👉Wagner-Meerwein rearrangement mechanism 👉In this Reaction .... 👉when a alcohol containing two or three alkyal or aryl group on the b carbon atom is treated with acid, 👉reshuffling of atom or group take place and give rise to product with different carbon skeleton. 👉This type of rearrangement is called Wagner-Meerwein rearrangement. Mechanism. 👉The OH group of 3,3dimethyl 2butanol abstract a proton from the acid and formation of oxonium ion.and now h2o is also act as a leaving group. 👉This oxonium ion readily loses a water molecule to produce a secondary carbonium ion. 👉due to loss of water these show formation of a carbonium ion .And driving force for the migration of methyl is provided by the increase stability of the rearranged on which happens to be a tertiary carbonium ion. 👉A proton is lost from the newly formed carbonium ion to form the corresponding olefin. 👉And formation of a product 2,3 dimethyl 2 butene. . . . .. .. .. .. 👉Thanks for watching 👍 👍